That's an interesting point of view, especially if you consider the overnight success Asustek had with the Eee PC. If anyone had faith in compact computing, you would think it should be them. Asustek claims that the success of MIDs depends on many factors, including the standardization of WiMAX and ultimately price. The latter is a very important note, since the company's pricing has been criticized in recent history as being out of line with the rest of the market.
They don't mention plans to release MIDs based upon Moorestown specifically, though it seems very likely as they have been very willing to embrace Intel platforms in the past.